They are definitely not synonyms, that would mean they mean the same thing wich they definitely do not. They are antonyms.
I'm not sure that I get the question... Maybe if you gave me a little more information about it I could help you?
Answer:
The complete subject would be SpongeBob SquarePants's best party trick.
Explanation:
The subject, or thing completing the action, is SpongeBob SquarePants. But the complete subject would be his best party trick because it gets into one of his distinct attributes.
Answer: The audience would be the school board or the members of the school and your trying to convince them to change the rule.
Explanation:
